getSubStringLength

getSubStringLength

Notes

Remarks

The total text advance distance includes the advance value on the glyphs (horizontal or vertical), kerning effects, letter-spacing effects, word-spacing effects, and adjustments because of the dx and dy attributes on tSpan elements.

If multiple consecutive characters are rendered inseparably (for example, as a single glyph or a sequence of glyphs, or because the range encompasses half of a surrogate pair), and if the nchars parameter is greater than 0, the measured range (i.e., total advance distance) is expanded so that each of the inseparable characters are included.